The purpose of this document is to provide the Message Implementation Guideline (MIG) of INSRES/XML, the response to the Intrastat declaration in XML. This MIG has been designed, validated and approved by delegates of Member States and Eurostat within the framework of the EEG6/WG5. The Intrastat system implementation model, version 6.3 is the basis of the definition of INSRES/XML. These specifications contain: • Use case diagram of collection of intra-Community trade statistics (Intrastat system); • Activity diagram associated with the use case "Submit Intrastat declaration"; • Sequence diagram associated with the use case "Submit Intrastat declaration”; • Class diagram of the Intrastat system; this class diagram shows the static structure of the Intrastat system for application purpose; • Class diagram of the INSTAT message built from the class diagram of the Intrastat system; • Class diagram of the INSRES message (response to INSTAT) built from the class diagram of the Intrastat system. INSRES/XML is derived from the class diagram of the INSRES message. More information about the Intrastat declaration in XML is provided in the MIG of INSTAT/XML version 6.3. The new XML Schema Definition Language (XSDL) developed by W3C defines the set of rules describing the structure of INSRES/XML. INSRES/XML is an optional application response as an acknowledgement of receipt of INSTAT/XML or as an acceptance or rejection of INSTAT/XML at envelope or declaration level. Errors found at envelope, declaration or item level of INSTAT/XML can be reported in INSRES/XML. This document is structured in the following sections: - Introduction; - INSRES/XML Diagram, representing the structure of the document; - Description of the prolog; - Cross reference between the information to be sent in the response and the elements of INSRES/XML; - Description of the elements; - XML Schema, version 1.0 (insres1.1_draft.xsd); - Examples of XML responses to INSTAT/XML